Lamp



FIG. 1 is a perspective view of a lamp showing the new design;

FIG. 2 is a front view of a lamp;

FIG. 3 is a left view of a lamp;

FIG. 4 is a right view of a lamp;

FIG. 5 is a top view of a lamp;

FIG. 6 is a bottom view of a lamp; and,

FIG. 7 is a rear view of a lamp.

The broken lines shown in the drawings illustrate portions of the lamp that form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 